Bardales, Julio, et al. “PROPOSAL FOR A SYSTEM OF ENVIRON MENTAL INFORMATION IN THE COLLECTION OF SOLID WASTED IN THE DISTRICT OF SAN LUIS, LIMA, PERU”. Revista Del Instituto De investigación De La Facultad De Minas, Metalurgia Y Ciencias geográficas, vol. 19, no. 38, Dec. 2016, pp. 97-101, https://doi.org/10.15381/iigeo.v19i38.13574.